Chadless perforation
[电] 无屑凿孔
🧩 词语组成解析
[计] 半穿孔
perforation
[[ˌpə:fə'reiʃən]]
n. 穿孔, 孔眼, 贯穿, 贯通\\n[化] 穿透
🗣️ 情景例句
It was wet yesterday.
昨天下雨。
I got a dozen eggs.
我拿了一打鸡蛋。
Oh yes! I know she quite often eats chicken at home.
噢，对了！我知道她在家里常吃鸡肉。